/***
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*
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* include/rtnet_socket.h
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*
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* RTnet - real-time networking subsystem
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* Copyright (C) 1999 Lineo, Inc
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* 1999, 2002 David A. Schleef <ds@schleef.org>
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* 2002 Ulrich Marx <marx@kammer.uni-hannover.de>
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* 2003-2005 Jan Kiszka <jan.kiszka@web.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#ifndef __RTNET_SOCKET_H_
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#define __RTNET_SOCKET_H_
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#include <asm/atomic.h>
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#include <linux/list.h>
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#include <rtdev.h>
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#include <rtdm/net.h>
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#include <rtdm/driver.h>
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#include <stack_mgr.h>
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struct rtsocket {
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unsigned short protocol;
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struct rtskb_pool skb_pool;
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unsigned int pool_size;
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struct mutex pool_nrt_lock;
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struct rtskb_queue incoming;
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rtdm_lock_t param_lock;
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unsigned int priority;
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nanosecs_rel_t timeout; /* receive timeout, 0 for infinite */
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rtdm_sem_t pending_sem;
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void (*callback_func)(struct rtdm_fd *, void *arg);
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void *callback_arg;
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unsigned long flags;
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union {
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/* IP specific */
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struct {
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u32 saddr; /* source ip-addr (bind) */
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u32 daddr; /* destination ip-addr */
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u16 sport; /* source port */
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u16 dport; /* destination port */
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int reg_index; /* index in port registry */
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u8 tos;
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u8 state;
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} inet;
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/* packet socket specific */
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struct {
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struct rtpacket_type packet_type;
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int ifindex;
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} packet;
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} prot;
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};
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static inline struct rtdm_fd *rt_socket_fd(struct rtsocket *sock)
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{
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return rtdm_private_to_fd(sock);
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}
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void *rtnet_get_arg(struct rtdm_fd *fd, void *tmp, const void *src, size_t len);
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int rtnet_put_arg(struct rtdm_fd *fd, void *dst, const void *src, size_t len);
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#define rt_socket_reference(sock) rtdm_fd_lock(rt_socket_fd(sock))
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#define rt_socket_dereference(sock) rtdm_fd_unlock(rt_socket_fd(sock))
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int rt_socket_init(struct rtdm_fd *fd, unsigned short protocol);
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void rt_socket_cleanup(struct rtdm_fd *fd);
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int rt_socket_common_ioctl(struct rtdm_fd *fd, int request, void __user *arg);
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int rt_socket_if_ioctl(struct rtdm_fd *fd, int request, void __user *arg);
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int rt_socket_select_bind(struct rtdm_fd *fd, rtdm_selector_t *selector,
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enum rtdm_selecttype type, unsigned fd_index);
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int rt_bare_socket_init(struct rtdm_fd *fd, unsigned short protocol,
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unsigned int priority, unsigned int pool_size);
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static inline void rt_bare_socket_cleanup(struct rtsocket *sock)
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{
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rtskb_pool_release(&sock->skb_pool);
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}
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#endif /* __RTNET_SOCKET_H_ */
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